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Load curve time frame division method suitable for reconfiguration of power distribution network

A technology for reconfiguration of distribution network and load curve, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as time division of unloadable curve, achieve optimal operation, simplify daily load curve, and improve economic benefits Effect

Active Publication Date: 2017-12-08
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology

[0006] Theoretically speaking, these existing technologies only use the clustering method to classify the load curves and extract the typical daily load curves, but cannot divide the load curves into time periods; The average value of each point, without equalizing the load within the time period, in order to realize the effective use of load data

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  • Load curve time frame division method suitable for reconfiguration of power distribution network
  • Load curve time frame division method suitable for reconfiguration of power distribution network
  • Load curve time frame division method suitable for reconfiguration of power distribution network

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Embodiment Construction

[0064] In order to clearly illustrate the technical solution provided by the present invention, the method for dividing the load curve period provided by the present invention will be described in detail below in conjunction with the design flowchart in the accompanying drawings of the specification.

[0065] In view of the problems that most of the current inventions only use clustering methods to classify load curves and extract typical daily load curves, but cannot divide the load curves by time periods, the present invention aims to overcome the shortcomings of the prior art and adopts fuzzy clustering and patterns The identification method divides the load curve by time period, completes the equivalent processing of complex grid load data, effectively compresses the amount of load data, and reasonably determines the switching action time of the dynamic reconfiguration of the distribution network, which can improve the operation of the distribution system Economy and reliabili...

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Abstract

The invention provides a load curve time frame division method suitable for reconfiguration of a power distribution network. The method comprises the steps of performing per-unit on a load; dividing a load curve time frame; calculating an equivalent load of the load curve time frame; calculating mode proximity; and determining an equivalent mode of a load curve. According to the technical scheme provided by the invention, time frame division is performed on the load curve by employing a method of fuzzy clustering and mode identification, equivalent processing on load data of a complicated power grid is completed, the load data volume is effectively compressed, the switch action time of dynamic reconfiguration of the power distribution network is reasonably determined, and the running economy and reliability of a power distribution system can be improved.

Description

Technical field [0001] The invention relates to a load characteristic analysis method, in particular to a load curve period division method suitable for distribution network reconstruction. Background technique [0002] During the operation of the distribution network, the load always changes with time. Due to the randomness of load changes, it is impossible for the distribution network to have exactly two operating states during the operation. If you analyze each operating state separately, The amount of calculation is very large; on the other hand, because people’s work and rest patterns and electricity consumption habits are relatively stable, the load changes in the distribution network are regular, with certain relevance and reproducibility, so according to the load in the distribution network The characteristics of the curve divide the moments of large load fluctuations in a period of time (1d) into different time periods, and classify the moments of small load fluctuations...

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Application Information

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IPC IPC(8): H02J3/00G06F17/50
CPCH02J3/00G06F30/367H02J2203/20Y02E60/00
Inventor 宋晓辉李建芳高菲张瑜常松赵珊珊唐巍王雨婷
Owner CHINA ELECTRIC POWER RES INST
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